Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

WESLEY JOHN CHANG

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1174593453
CMS profile
234824
Location
ANAHEIM, CA

General Payments · PY2018–2024

$5,993.66

  • Reported across 286 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$771.57

22 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $771.57 22

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Acerta Pharma LLC $509.54 11
Exact Sciences Corporation $77.05 3
PFIZER INC. $54.38 3
Lilly USA, LLC $33.42 1
Amgen Inc. $30.54 1
Novo Nordisk AS $24.86 1
BOSTON SCIENTIFIC CORPORATION $24.42 1
MEDLINE INDUSTRIES LP $17.36 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $666.15 36
PY2019 $679.20 34
PY2020 $742.45 37
PY2021 $1,725.51 100
PY2022 $675.79 33
PY2023 $732.99 24
PY2024 $771.57 22

Payment records · PY2024 (22)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Amgen Inc. $30.54 10/09/2024 Food and Beverage Undisputed 01/23/2026 1115491564 CMS
AstraZeneca Pharmaceuticals LP $43.28 01/12/2024 Food and Beverage Undisputed 01/23/2026 1104671323 CMS
AstraZeneca Pharmaceuticals LP $120.47 03/14/2024 Food and Beverage Undisputed 01/23/2026 1104283225 CMS
AstraZeneca Pharmaceuticals LP $14.04 04/02/2024 Food and Beverage Undisputed 01/23/2026 1104569110 CMS
AstraZeneca Pharmaceuticals LP $15.50 05/08/2024 Food and Beverage Undisputed 01/23/2026 1105804131 CMS
AstraZeneca Pharmaceuticals LP $13.94 06/11/2024 Food and Beverage Undisputed 01/23/2026 1104622124 CMS
AstraZeneca Pharmaceuticals LP $14.49 07/16/2024 Food and Beverage Undisputed 01/23/2026 1104384511 CMS
AstraZeneca Pharmaceuticals LP $120.39 08/29/2024 Food and Beverage Undisputed 01/23/2026 1104747893 CMS
AstraZeneca Pharmaceuticals LP $14.20 09/16/2024 Food and Beverage Undisputed 01/23/2026 1104282375 CMS
AstraZeneca Pharmaceuticals LP $15.66 10/15/2024 Food and Beverage Undisputed 01/23/2026 1105793918 CMS
AstraZeneca Pharmaceuticals LP $17.81 11/08/2024 Food and Beverage Undisputed 01/23/2026 1104386391 CMS
AstraZeneca Pharmaceuticals LP $119.76 11/13/2024 Food and Beverage Undisputed 01/23/2026 1104623876 CMS
Boston Scientific Corporation $24.42 09/11/2024 Food and Beverage Undisputed 01/23/2026 1092720834 CMS
Exact Sciences Corporation $32.01 05/10/2024 Food and Beverage Undisputed 01/23/2026 1114612394 CMS
Exact Sciences Corporation $19.59 07/17/2024 Food and Beverage Undisputed 01/23/2026 1114612398 CMS
Exact Sciences Corporation $25.45 10/04/2024 Food and Beverage Undisputed 01/23/2026 1114612401 CMS
Lilly USA, LLC $33.42 03/06/2024 Food and Beverage Undisputed 01/23/2026 1135503386 CMS
Medline Industries LP $17.36 11/13/2024 Food and Beverage Undisputed 01/23/2026 1144140893 CMS
Novo Nordisk Inc $24.86 08/21/2024 Food and Beverage Undisputed 01/23/2026 1097790008 CMS
PFIZER INC. $22.98 03/14/2024 Food and Beverage Undisputed 01/23/2026 1131148964 CMS
PFIZER INC. $17.26 11/20/2024 Food and Beverage Undisputed 01/23/2026 1131172971 CMS
PFIZER INC. $14.14 11/21/2024 Food and Beverage Undisputed 01/23/2026 1131201080 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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